1、Book3 Unit4 Astronomy: the science of the starsPeriod 4 Reading Learning about language一、 课程标准1. 了解宇宙科学、地球生命的起源，了解万有引力、黑洞等天文知识，培养科学兴趣，激发探究科学的热情。2. 培养创造性思维，开拓广阔的想象空间以及对未来的幻想。3. 掌握本单元教学目的和要求中的词汇用法。4. 掌握主语从句的用法。二、 学习目标1. 了解地球上生命的起源和进化过程。检测学生对本文核心问题的理解：地球上生命的起源和延续需要哪些条件？2. 通过排序的方式帮助学生弄清本文的行文线索，也就是地球上生命的
2、起源和发展历程。3. 总结文章中心思想，提高学生的对文章的归纳总结能力。三、重点、难点、考点1.导学重点：阅读课文，捕捉关键信息，完成阅读理解练习。2.导学难点：培养学生的深层理解和推断能力，找出逻辑思维线索。3.高考考点：考查科普类文章阅读能力，能准确分析文章的段落大意和中心思想。预习案【课前学习】(课前学生自主完成，课堂检测预习情况）1. 阅读课文，找出课文中能够说明地球上生命的起源以及进化的词语或句子，加深课文理解 单词： 句子： 2. 预习“A VISIT TO THE MOON”探究案一、花8分钟时间小组合作，深度探究，推出小组学生代表展示： How life began on th
3、e earth1 small plants in water2 4 insects(on land)5 (onland or in water)3 green plants on land 6 forests7 8 9 11 human10 二、花3分钟时间写出文章的中心思想：The text tells the readers how and how .From the passage, we know that is the best for human to . But humans didnt it in the past. Now we are facing many problem
4、s now. What should we human do? We should our earth. Taking good care of the earth means .训练案【课堂检测】一、花10分钟时间完成下面表格填空，推出小组代表进行展示 ：TimeWhat happenedBig Bang began to form and combine to create stars and other bodies. Between 4.5 and 3.8 billion years ago Dust settled into a solid and globe. The earth
5、exploded to produce its . The continued of water allowed the earth to dissolve harmful gases and into the oceans and seas.Many millions of years later The first small plants on the surface of the water produced . Early and all sorts of fish appeared. Green plants began to grow on land. Insects and a
6、ppeared.【课后拓展】一、阅读课本p30-31的泛读材料，完成以下问题，在下节课小组代表展示：Read and then describe the three ways in which gravity changed for Li Yanping and how his weight changed.1. 2. 3. 二、完成课本p28-Exercise3的练习，下节课小组代表展示：三、阅读下面文章，查阅生词并记录在笔记本上。Hawking and a childrens bookStephen Hawking, the worlds most famous physicist, a
7、best-selling author, and the leading expert on cosmology (宇宙论) and black holes, will publish a middle- -school childrens book about the wonders of science, titled Georges Secret Key to the Universe. Lucy Hawking, 36, the physicists daughter and a successful journalist, is the co-author.Georges Secre
8、t Key to the Universe is an adventure story where all the adventures are based on real science. It is a journey across space to learn more about the universe in which we live and a journey through physics, the laws that govern (支配) the universe, to understand more about it. But its also the story of
9、 a lonely boy and how his life changes when he meets his new next-door neighbours, Annie and Eric. Annie is mad about the ballet (芭蕾) and Eric, her father, is a scientist. Eric works with a computer called Cosmos who is so powerful and so clever that he can draw a doorway, through which you can walk
10、 to any place in the known universe. The 320-page-book targets (面向) the eight-plus age group. Lucy said, “My father was telling people it was for the 8-to-80 age range (范围) until I asked why he thought the over-eighties wouldnt enjoy it. So now he just says 8 and upwards, no upper limit.”四、下面句中均有一处错
11、误，请找出并改正1. Its so cold to sit outside. Lets go inside.2. Something must catch fire. The room is filled of thick smoke.3. He is unable to go to work as the result of the fall from his horse.4. She only allows the children watching television on the weekends.5. Id be very interesting in knowing more about the services your firm offers.课后反思 1 / 2
